Answer: A.
Explanation: The Earth has a magnetic sphere that protects it from the sun's particles. Even though the particles take a while to travel to Earth, whenever they are deflected that is what causes the Northern Lights.
Nerves that send signals to the brain to tell you what your feeling
Answer:
carbon dioxide in the atmosphere is a green house gas that traps heat which causes the temperature to rise
Homeostasis, is the natural adaption of the environment
Answer:
Stored ATP is used and in the process it forms a net increase in ATP
Explanation:
It needs 2 ATP at the start of glycolysis (investment phase) and produces four ATP molecules, and two molecules of NADH at the end (payoff phase)